osgUtil::Intersector Class Reference

#include <IntersectionVisitor.h>

Inheritance diagram for osgUtil::Intersector:

Collaboration diagram for osgUtil::Intersector:

Public Types
enum	CoordinateFrame { WINDOW, PROJECTION, VIEW, MODEL }
enum	IntersectionLimit { NO_LIMIT, LIMIT_ONE_PER_DRAWABLE, LIMIT_ONE, LIMIT_NEAREST }
enum	PrecisionHint { USE_DOUBLE_CALCULATIONS, USE_FLOAT_CALCULATIONS }

Public Member Functions
	Intersector (CoordinateFrame cf=MODEL, IntersectionLimit il=NO_LIMIT)
void	setCoordinateFrame (CoordinateFrame cf)
CoordinateFrame	getCoordinateFrame () const
void	setIntersectionLimit (IntersectionLimit limit)
IntersectionLimit	getIntersectionLimit () const
virtual Intersector *	clone (osgUtil::IntersectionVisitor &iv)=0
virtual bool	enter (const osg::Node &node)=0
virtual void	leave ()=0
virtual void	intersect (osgUtil::IntersectionVisitor &iv, osg::Drawable *drawable)=0
virtual void	reset ()
virtual bool	containsIntersections ()=0
bool	disabled () const
void	incrementDisabledCount ()
void	decrementDisabledCount ()
bool	reachedLimit ()
void	setPrecisionHint (PrecisionHint hint)
PrecisionHint	getPrecisionHint () const
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
virtual void	setThreadSafeRefUnref (bool threadSafe)
bool	getThreadSafeRefUnref () const
OpenThreads::Mutex *	getRefMutex () const
int	ref () const
int	unref () const
int	unref_nodelete () const
int	referenceCount () const
ObserverSet *	getObserverSet () const
ObserverSet *	getOrCreateObserverSet () const
void	addObserver (Observer *observer) const
void	removeObserver (Observer *observer) const

Protected Attributes
CoordinateFrame	_coordinateFrame
IntersectionLimit	_intersectionLimit
unsigned int	_disabledCount
PrecisionHint	_precisionHint
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Additional Inherited Members
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
static bool	getThreadSafeReferenceCounting ()
static void	setDeleteHandler (DeleteHandler *handler)
static DeleteHandler *	getDeleteHandler ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Detailed Description

Pure virtual base class for implementing custom intersection technique. To implement a specific intersection technique on must override all the pure virtual methods, concrete examples of how to do this can be seen in the LineSegmentIntersector.

Definition at line 33 of file IntersectionVisitor.h.

Member Enumeration Documentation

enum osgUtil::Intersector::CoordinateFrame

Enumerator
WINDOW
PROJECTION
VIEW
MODEL

Definition at line 37 of file IntersectionVisitor.h.

enum osgUtil::Intersector::IntersectionLimit

Enumerator
NO_LIMIT
LIMIT_ONE_PER_DRAWABLE
LIMIT_ONE
LIMIT_NEAREST

Definition at line 45 of file IntersectionVisitor.h.

enum osgUtil::Intersector::PrecisionHint

Hint to precision used in the internal intersections calculations.

Enumerator
USE_DOUBLE_CALCULATIONS
USE_FLOAT_CALCULATIONS

Definition at line 89 of file IntersectionVisitor.h.

Constructor & Destructor Documentation

osgUtil::Intersector::Intersector ( CoordinateFrame  cf = MODEL, IntersectionLimit  il = NO_LIMIT  )

inline

Definition at line 53 of file IntersectionVisitor.h.

Member Function Documentation

virtual Intersector* osgUtil::Intersector::clone ( osgUtil::IntersectionVisitor &  iv )

pure virtual

Implemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

virtual bool osgUtil::Intersector::containsIntersections ( )

pure virtual

Implemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

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void osgUtil::Intersector::decrementDisabledCount ( )

inline

Definition at line 84 of file IntersectionVisitor.h.

bool osgUtil::Intersector::disabled ( ) const

inline

Definition at line 80 of file IntersectionVisitor.h.

virtual bool osgUtil::Intersector::enter ( const osg::Node &  node )

pure virtual

Implemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

CoordinateFrame osgUtil::Intersector::getCoordinateFrame ( ) const

inline

Definition at line 62 of file IntersectionVisitor.h.

IntersectionLimit osgUtil::Intersector::getIntersectionLimit ( ) const

inline

Definition at line 66 of file IntersectionVisitor.h.

PrecisionHint osgUtil::Intersector::getPrecisionHint ( ) const

inline

Get the hint to what precision should be used in the intersections calculations.

Definition at line 99 of file IntersectionVisitor.h.

void osgUtil::Intersector::incrementDisabledCount ( )

inline

Definition at line 82 of file IntersectionVisitor.h.

virtual void osgUtil::Intersector::intersect ( osgUtil::IntersectionVisitor &  iv, osg::Drawable *  drawable  )

pure virtual

Implemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

virtual void osgUtil::Intersector::leave ( )

pure virtual

Implemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

bool osgUtil::Intersector::reachedLimit ( )

inline

Definition at line 86 of file IntersectionVisitor.h.

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virtual void osgUtil::Intersector::reset ( )

inlinevirtual

Reimplemented in osgUtil::IntersectorGroup, osgUtil::PolytopeIntersector, osgUtil::RayIntersector, osgUtil::LineSegmentIntersector, and osgUtil::PlaneIntersector.

Definition at line 76 of file IntersectionVisitor.h.

void osgUtil::Intersector::setCoordinateFrame ( CoordinateFrame  cf )

inline

Definition at line 60 of file IntersectionVisitor.h.

void osgUtil::Intersector::setIntersectionLimit ( IntersectionLimit  limit )

inline

Definition at line 64 of file IntersectionVisitor.h.

void osgUtil::Intersector::setPrecisionHint ( PrecisionHint  hint )

inline

Set the hint to what precision to use in the intersections calculations.

Definition at line 96 of file IntersectionVisitor.h.

Member Data Documentation

CoordinateFrame osgUtil::Intersector::_coordinateFrame

protected

Definition at line 103 of file IntersectionVisitor.h.

unsigned int osgUtil::Intersector::_disabledCount

protected

Definition at line 105 of file IntersectionVisitor.h.

IntersectionLimit osgUtil::Intersector::_intersectionLimit

protected

Definition at line 104 of file IntersectionVisitor.h.

PrecisionHint osgUtil::Intersector::_precisionHint

protected

Definition at line 106 of file IntersectionVisitor.h.

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The documentation for this class was generated from the following file:

• osg_head/include/osgUtil/IntersectionVisitor.h